Apple - How to check if my HD is case sensitive or not?
You can use terminal to read the File System Personality:
diskutil info /
Look for the fields named below:
File System Personality: Journaled HFS+
Type (Bundle): hfs
Name (User Visible): Mac OS Extended (Journaled)
If the file system is case sensitive, you will see Case-sensitive Journaled HFS in the first pasted line and Mac OS Extended (Case-sensitive, Journaled) in the third.
Disk Utility will also show you this from the info window for any File System it can see.
Something like this should work:
Testing
touch abc1
touch abC1
ls ab*
Interpreting Results
- 1 file - case insensitive
- 2 files - case sensitive
Update for El Capitan, see the attached screen shot from Disk Utility's Info-window.